No abstract

CL-20 among other nitramines is highly energetic along with the high positive heat of formation, and is a green energetic material employed as solid propellant [1][2][3]. However, it suffers basically from mechanical sensitivity and cost of synthesis. Cocrystallization of CL-20 with other suitable HEMs and LEMs is considered as the best crystal engineering technique to reduce its sensitivity [2,[4][5][6] as it masks crystal defects which in turn are responsible for mechanical sensitivity. The present investigation reports on the scale up process for the synthesis of Energy-Energy Cocrystallization (EECC) of ɛ-CL-20 and RDX and focus on the process to optimize the structure and energetics of thus formed cocrystal (CRCC) through DFT study. In our study CL-20 and RDX are taken in 1 : 1 molar ratio as sug-gested by . We claim successful scale up of cocrystallization to the earlier report [4] employing a more user friendly solvent (acetone) in the present study and the cocrystal formed was through ultra centrifugation. During the course of the cocrystal formation a phase transition from ɛto α took place. The Trauzl lead block tests on CRCC support the better performance of the synthesised EECC. Introducing shock tube test as the parameter to claim the strength of HEMs enhances the comparability [8]. The present report envisages and collaborates the synthesised CRCC through the theoretical study in arriving at the spatial conformation leading to optimization in structure and energy of the synthesized EECC.Keywords: Low sensitive High Energy Material (LSHEM) · Cocrystallization · Secondary bonding · Theoretical structure optimization · Gaussian [a] J.

This is a report on large scale synthesis of nickel oxide (NiO) using polyethylene glycol as a fuel employing self-propagating combustion reaction with nickel oxalate as precursor. The synthesized NiO is characterized for its crystal structure, morphology and bonding via XRD, SEM and FTIR respectively. Thermal behavior of the synthesized NiO is studied employing TGA and DSC. Super paramagnetic behavior of the synthesized is studied by magnetic hysteresis.

No abstract

This manuscript shows the recrystallization of micro Pentaerythritol tetranitrate (mcPETN) through solvent anti solvent technique by changing some important parameters viz., rotations per minute, temperature of crystallization, while keeping the concentration of PETN constant as in solvent acetone. The synthesized mcPETN is characterized for its crystal structure and morphology. The enhanced performance to its macro sized PETN is reported herewith the results.